| 摘要 |
PURPOSE:To apply the oil even to the center of a guide rod without fail by providing slidably and connectably one oil applied ring to a moving body guide rod between two bearing parts of a scanning moving body. CONSTITUTION:Even between bearing parts 3a and 3b of the first scanner 3, an oil applying ring 2c is slidably and connectably provided to a guide rod 1. At the time of the outward route, a ring 2c is pushed in the right direction by the bearing 3a of the first scanner, moved near the right edge of the guide rod, and at the time of the inward route, the ring is pushed in the left direction by the bearing 3b of the first scanner 3 and returns near the left edge of the guide rod 1. As the result, the oil applying range by the oil applying ring 2c becomes the part excluding both edge parts B of the guide rod 1. Thus, oil applying rings 2a, 2b and 2c apply the oil over the whole length of the guide rod 1. |
